What is the ratio of oxygen to acetylene?
1,2 to 1
Do you turn on oxygen or acetylene first?
We recommend closing the oxygen valve first whenever turning off an oxy-fuel torch system especially when Acetylene is fuel. This is only part, but a very important part, of the complete safe operating procedure recommended for torches by Harris.
Do you use more oxygen or acetylene?
For maximum flame temperature in oxygen, the ratio volume of oxygen to fuel gas are 1.2 to 1 for acetylene and 4.3 to 1 for propane. So, there is far more oxygen being consumed when using propane than acetylene.
Why is my cutting torch popping?
The reason that an oxyacetylene cutting torch will pop and go out is because of a problem with gas flow. Usually this is either an issue with flow settings, a leak or blockage.
What is the difference between an oxygen and acetylene regulator?
The acetylene regulator design is generally the same as that of the oxygen regulator, but will not withstand such high pressures. The high pressure gauge, on the inlet side of the regulator, is graduated from 0 to 500 psi (3447.5 kPa).
What pressure should oxygen and acetylene be set at for cutting?
RULE OF THUMB (MULTI-HOLE CUTTING TIPS, OXY / ACETYLENE) Recommended oxy/acetylene cutting tip pressures vary with size. If you have no manufacturer setting- information, and are cutting less than 1 ½” thick steel, set the acetylene regulator for 10 psig, and the oxygen regulator for 40 psig.
What is the most widely used fuel gas used for cutting?
Acetylene
Which Fuel Gas has the strongest odor and is easiest to detect?
Cards
| Term 1. What elements make up all hydrocarbons? | Definition Hydrogen & carbon. |
|---|---|
| Term 13. Which fuel gas has the strongest odor and is easiest to detect? | Definition MAPP |
| Term 14. What is the major advantage of using propane or natural gas? | Definition For heating, and natural gas does not have cylinders. |
Which flame is used for cutting operation?
Adjustment is made by adding more or less oxygen to the acetylene flame. The neutral flame is the flame most generally used when welding or cutting. The welder uses the neutral flame as the starting point for all other flame adjustments because it is so easily defined.
What is oxy-fuel cutting best used for?
Oxy-fuel torches are normally used for cutting only ferrous metals or those containing iron, such as carbon steel. For the most part, they are not used for cutting cast iron, aluminum or stainless steel.
What is the difference between plasma cutting and oxy-fuel cutting?
Plasma cutting is made possible by introducing electricity into compressed air to create an ionized, imbalanced plasma gas. Oxyfuel cutting is where an oxygen fuel gas flame preheats the material to its ignition temperature, then a powerful oxygen jet is directed at the material.
Which material Cannot be cut by the oxyfuel process?
Oxy-fuel cutting cannot cut non-ferrous metals such as aluminum, stainless, brass or copper. Elements such as chromium, nickel, molybdenum inhibit the ability to cut steel with the oxy-fuel process.
Why is oxy-fuel gas cutting called Burning?
An oxy-fuel cutting torch is used, it has a flame, and the steel is “burned” as it cuts. The actual chemical process that takes place is sometimes described as “rapid rusting” of the steel.
Where is oxy-fuel cutting used?
Oxy-fuel cutting is used for the cutting of mild steel. Only metals whose oxides have a lower melting point than the base metal itself can be cut with this process. Otherwise as soon as the metal oxidises it terminates the oxidation by forming a protective crust.
Which gas is used for metal cutting?
Acetylene Oxy acetylene
What is the principle of gas cutting?
Oxy-fuel cutting is a chemical reaction between pure oxygen and steel to form iron oxide. It can be described as rapid, controlled rusting. Preheat flames are used to raise the surface or edge of the steel to approximately 1800°F (bright red color).
What are the safety precautions for gas cutting?
General Gas Welding Safety Tips
- Inspect equipment for leaks at all connections using approved leak-test solution.
- Inspect hoses for leaks and worn places.
- Replace bad hoses.
- Protect hoses and cylinders from sparks, flames, and hot metal.
- Use a flint lighter to ignite the flame.
How many types of gas cutting nozzles are there?
three
What flame is the hottest?
violet
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